diff --git a/src/SocketTap.cpp b/src/SocketTap.cpp
index 9bc98ea..188e3aa 100644
--- a/src/SocketTap.cpp
+++ b/src/SocketTap.cpp
@@ -92,7 +92,8 @@ namespace ZeroTier {
 
 	bool SocketTap::addIp(const InetAddress &ip)
 	{
-		if(picostack) {		
+		if(picostack) {	
+			DEBUG_INFO("addr = %s", ip.toString().c_str());	
 			picostack->pico_init_interface(this, ip);
 			_ips.push_back(ip);
 			std::sort(_ips.begin(),_ips.end());
diff --git a/src/ZeroTierSDK.cpp b/src/ZeroTierSDK.cpp
index 7d6583e..3cf7ab5 100644
--- a/src/ZeroTierSDK.cpp
+++ b/src/ZeroTierSDK.cpp
@@ -412,7 +412,7 @@ int zts_connect(ZT_CONNECT_SIG) {
             inet_ntop(AF_INET6, 
                 (const void *)&((struct sockaddr_in6 *)addr)->sin6_addr.s6_addr, ipstr, INET6_ADDRSTRLEN);
         }
-        iaddr.fromString(ipstr);
+        iaddr.fromString(ipstr+std::string("/88"));
         //DEBUG_INFO("ipstr= %s", ipstr);
         //DEBUG_INFO("iaddr= %s", iaddr.toString().c_str());
         tap = zt1Service->getTap(iaddr);
@@ -524,20 +524,14 @@ int zts_bind(ZT_BIND_SIG) {
         ZeroTier::InetAddress iaddr;
 
         if(conn->socket_family == AF_INET) {
-            printf("parsing ipv4 str\n");
             inet_ntop(AF_INET, 
                 (const void *)&((struct sockaddr_in *)addr)->sin_addr.s_addr, ipstr, INET_ADDRSTRLEN);
         }
         if(conn->socket_family == AF_INET6) {
-            printf("parsing ipv6 str\n");
             inet_ntop(AF_INET6, 
                 (const void *)&((struct sockaddr_in6 *)addr)->sin6_addr.s6_addr, ipstr, INET6_ADDRSTRLEN);
         }
         iaddr.fromString(ipstr);
-
-        DEBUG_INFO("ipstr= %s", ipstr);
-        DEBUG_INFO("iaddr= %s", iaddr.toString().c_str());
-
         tap = zt1Service->getTap(iaddr);
 
         if(!tap) {
diff --git a/src/picoTCP.cpp b/src/picoTCP.cpp
index 4f58ccd..6aabbfe 100644
--- a/src/picoTCP.cpp
+++ b/src/picoTCP.cpp
@@ -106,6 +106,8 @@ namespace ZeroTier {
 				char ipv6_str[INET6_ADDRSTRLEN], nm_str[INET6_ADDRSTRLEN];
 				inet_ntop(AF_INET6, ip.rawIpData(), ipv6_str, INET6_ADDRSTRLEN);
 				inet_ntop(AF_INET6, ip.netmask().rawIpData(), nm_str, INET6_ADDRSTRLEN);
+				DEBUG_ERROR("ipv6_str = %s", ipv6_str);
+				DEBUG_ERROR("nm_str = %s", nm_str);
 		    	pico_string_to_ipv6(ipv6_str, ipaddr.addr);
 		    	pico_string_to_ipv6(nm_str, netmask.addr);
 			    pico_ipv6_link_add(&(tap->picodev6), ipaddr, netmask);
@@ -488,33 +490,22 @@ namespace ZeroTier {
 			char ipv4_str[INET_ADDRSTRLEN];
 			inet_ntop(AF_INET, (const void *)&in4->sin_addr.s_addr, ipv4_str, INET_ADDRSTRLEN);
 			pico_string_to_ipv4(ipv4_str, &(zaddr.addr));
-			
 			// DEBUG_ATTN("addr=%s: %d ntoh()=%d", ipv4_str, in4->sin_port, Utils::ntoh(in4->sin_port));
 			err = pico_socket_bind(conn->picosock, &zaddr, (uint16_t *)&(in4->sin_port));
 		#endif
 		#if defined(SDK_IPV6)
-
-/*
-
-			struct pico_ip6 zaddr;
-			struct sockaddr_in6 *in6 = (struct sockaddr_in6*)&bind_rpc->addr;
+			struct pico_ip6 pip6;
+			struct sockaddr_in6 *in6 = (struct sockaddr_in6*)addr;
 			char ipv6_str[INET6_ADDRSTRLEN];
 			inet_ntop(AF_INET6, &(in6->sin6_addr), ipv6_str, INET6_ADDRSTRLEN);
-	    	picotap->picostack->__pico_string_to_ipv6(ipv6_str, zaddr.addr);
-	    	DEBUG_ATTN("addr=%s:%d, physock=%p, picosock=%p", ipv6_str, Utils::ntoh(addr->sin_port), sock, (conn->picosock));
-			ret = picotap->picostack->__pico_socket_bind(conn->picosock, &zaddr, (uint16_t*)&(addr->sin_port));
-*/
-
-			struct pico_ip6 zaddr;
-			struct sockaddr_in6 *in6 = (struct sockaddr_in6*)&addr;
-			char ipv6_str[INET6_ADDRSTRLEN];
-			inet_ntop(AF_INET6, &(in6->sin6_addr), ipv6_str, INET6_ADDRSTRLEN);
-	    	pico_string_to_ipv6(ipv6_str, zaddr.addr);
-	    	DEBUG_ATTN("BIND addr=%s:%d", ipv6_str, Utils::ntoh(in6->sin6_port));
-			err = pico_socket_bind(conn->picosock, &zaddr, (uint16_t *)(in6->sin6_port));
-			DEBUG_ERROR("pico_err = %d", pico_err);
+			// TODO: This isn't proper
+	    	pico_string_to_ipv6("::", pip6.addr);
+       		//DEBUG_ATTN("addr=%s:%d, picosock=%p", ipv6_str, Utils::ntoh(in6->sin6_port), (conn->picosock));
+			err = pico_socket_bind(conn->picosock, &pip6, (uint16_t *)&(in6->sin6_port));
 		#endif
 		if(err < 0) {
+			if(pico_err < 0)
+				DEBUG_ERROR("pico_err = %d", pico_err);
 			DEBUG_ERROR("unable to bind pico_socket(%p), err=%d", (conn->picosock), err);
 			if(err == PICO_ERR_EINVAL) {
 				DEBUG_ERROR("PICO_ERR_EINVAL - invalid argument");
diff --git a/test/unit/unit.cpp b/test/unit/unit.cpp
index 034b441..99cc300 100644
--- a/test/unit/unit.cpp
+++ b/test/unit/unit.cpp
@@ -91,7 +91,7 @@ int ipv6_tcp_client_test(struct sockaddr_in6 *addr, int port)
 {
 	int r, w, sockfd, err, len = strlen(str);
 	char rbuf[STR_SIZE];
-	if((sockfd = zts_socket(AF_INET, SOCK_STREAM, 0)) < 0) {
+	if((sockfd = zts_socket(AF_INET6, SOCK_STREAM, 0)) < 0) {
 		printf("error creating ZeroTier socket");
 	}
 	if((err = zts_connect(sockfd, (const struct sockaddr *)addr, sizeof(addr))) < 0) {
@@ -547,7 +547,7 @@ int do_test(std::string path, std::string nwid, int type, int protocol, int mode
 			    addr6.sin6_family = AF_INET6;
 			    memmove((char *) &addr6.sin6_addr.s6_addr, (char *) server->h_addr, server->h_length);
 			    addr6.sin6_port = htons(port);
-				return ipv6_tcp_server_test(&addr6, port, operation, n_count, delay);
+				return ipv6_tcp_server_sustained_test(&addr6, port, operation, n_count, delay);
 			}
 		}
 
diff --git a/zto/node/InetAddress.cpp b/zto/node/InetAddress.cpp
index 7d22eea..3dc0122 100644
--- a/zto/node/InetAddress.cpp
+++ b/zto/node/InetAddress.cpp
@@ -279,6 +279,30 @@ InetAddress InetAddress::network() const
 	return r;
 }
 
+#ifdef ZT_SDK
+	bool InetAddress::isEqualPrefix(const InetAddress &addr) const
+	{
+		if (addr.ss_family == ss_family) {
+			switch(ss_family) {
+				case AF_INET6: {
+					const InetAddress mask(netmask());
+					InetAddress addr_mask(addr.netmask());
+					const uint8_t *n = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr_mask)->sin6_addr.s6_addr);
+					const uint8_t *m = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&mask)->sin6_addr.s6_addr);
+					const uint8_t *a = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(&addr)->sin6_addr.s6_addr);
+					const uint8_t *b = reinterpret_cast<const uint8_t *>(reinterpret_cast<const struct sockaddr_in6 *>(this)->sin6_addr.s6_addr);
+					for(unsigned int i=0;i<16;++i) {
+						if ((a[i] & m[i]) != (b[i] & n[i]))
+							return false;
+					}
+					return true;
+				}
+			}
+		}
+		return false;
+	}
+#endif
+
 bool InetAddress::containsAddress(const InetAddress &addr) const
 {
 	if (addr.ss_family == ss_family) {
diff --git a/zto/node/InetAddress.hpp b/zto/node/InetAddress.hpp
index c37fa62..0533ea0 100644
--- a/zto/node/InetAddress.hpp
+++ b/zto/node/InetAddress.hpp
@@ -347,6 +347,16 @@ struct InetAddress : public sockaddr_storage
 	 */
 	InetAddress network() const;
 
+#ifdef ZT_SDK	
+    /**
+	 * Test whether this IPv6 prefix matches the prefix of a given IPv6 address
+	 *
+	 * @param addr Address to check
+	 * @return True if this IPv6 prefix matches the prefix of a given IPv6 address
+	 */
+	 bool isEqualPrefix(const InetAddress &addr) const;
+#endif
+
 	/**
 	 * Test whether this IP/netmask contains this address
 	 *
diff --git a/zto/service/OneService.cpp b/zto/service/OneService.cpp
index 86e188f..f92650b 100644
--- a/zto/service/OneService.cpp
+++ b/zto/service/OneService.cpp
@@ -1005,7 +1005,7 @@ public:
 	    for(it = _nets.begin(); it != _nets.end(); it++) {
 			if(it->second.tap) {
 				for(int j=0; j<it->second.tap->_ips.size(); j++) {
-					if(it->second.tap->_ips[j].containsAddress(addr) 
+					if(it->second.tap->_ips[j].isEqualPrefix(addr) 
 						|| it->second.tap->_ips[j].ipsEqual(addr)) {
 						return it->second.tap;
 					}